Why does phosphorylation of adp require energy

Your body does exactly that when you eat your food. Here's a brief video lecture that summarizes this concept. Living things break down the three major categories of foods proteins, fats, and carbohydrates into their constituent parts, the individual lego blocks, for two reasons. ATP Adenosine tri-phosphate is an important molecule found in all living things. The energy holding that phosphate molecule is now released and available to do work for the cell.

When the cell has extra energy gained from breaking down food that has been consumed or, in the case of plants, made via photosynthesis , it stores that energy by reattaching a free phosphate molecule to ADP, turning it back into ATP.

The ATP molecule is just like a rechargeable battery. There are times when the cell needs even more energy, and it splits off another phosphate, so it goes from ADP, adenoside di-phosphate, to AMP, adenosine mono-phosphate.

Think of the others as different brands of rechargable batteries that do the same job. Related questions What elements make up proteins? What are some examples of proteins? What are amino acids? What are some examples of amino acids? What are some examples of the function of proteins? Explain the primary structure of proteins. Explain the secondary structure of proteins.

How do amino acids affect enzymes? The oxygen molecules of the ADP are sharing electrons. Those electrons are constantly being passed back and forth between the oxygens, creating an effect called resonance. This stables the ADP. Resonance does not occur in ATP; therefore, it is a more unstable molecule. This means that it is easier for ATP to lose one of its phosphate groups. But, it takes a large amount of water to force ADP to lose one of its phosphates.

References Zubay, Geoffrey. New York: Macmillan Publishing Company, Problems In cellular respiration, which process produces the most ATP? True or false: ATP may be used to regulate certain enzymes. From one molecule of glucose , how many molecules of ATP will be produced? Where is ATP synthase located?